ACT29

Industrial transmitting power triode intended for RF amplification, oscillation, or modulation. Manufacturer data emphasize substantial plate power, professional transmitter operation, and construction suited to continuous high-power service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -

Description

The ACT29 is an air-cooled transmitting triode for high-frequency power-amplifier and oscillator service, with convection or forced-air cooling depending on dissipation.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.0031 S
Max plate voltage: 10000 V
Max plate dissipation: 1250 W
Max grid dissipation: 80 W

Published maximum ratings and characteristics audited; remaining useful numerical data retained in TUBE_SECTION_PARAMETER.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1955 Marconi

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

When the anode dissipation exceeds
1000 W
When the anode dissipation exceeds 1,000 watts or
When the anode dissipation is
1000 W
When the anode dissipation is 1,000 watts or less
During this process a resistance of at least [1]
25
During this process a resistance of at least 25 ohms .1 125"MIN,
During this process a resistance of at least [2]
1
During this process a resistance of at least 25 ohms .1 125"MIN,
During this process a resistance of at least [3]
125
During this process a resistance of at least 25 ohms .1 125"MIN,
HT voltage in excess of
7 kV
HT voltage in excess of 7 kV. When the valve is to be
Pa(max) (convection cooling) [1]
1 kW
Pa(max) (convection cooling) 1 kW ; 40 60 A
Pa(max) (convection cooling) [2]
40 kW
Pa(max) (convection cooling) 1 kW ; 40 60 A
Pa(max) (convection cooling) [3]
60 kW
Pa(max) (convection cooling) 1 kW ; 40 60 A
(forced air cooling) [1]
1 kW
(forced air cooling) 1-25 kW e (@) m
(forced air cooling) [2]
-25 kW
(forced air cooling) 1-25 kW e (@) m
M taken at
40
M taken at 40 ~ | CLASS C ANODE MODULATED
Cg-a [1]
159
Cg-a 159 pF Pa (convection cooling) 650 w
Cg-a [2]
650
Cg-a 159 pF Pa (convection cooling) 650 w
(forced air cooling)
825
(forced air cooling) 825 w
(
1 W
(1) HF POWER AMPLIFIER AND v ypica® operatio . v
Pa (convection cooling) [1]
1000
Pa (convection cooling) 1000 w par (a) 20 w
Pa (convection cooling) [2]
20
Pa (convection cooling) 1000 w par (a) 20 w
(forced air cooling) [1]
1250
(forced air cooling) 1250 w Pa 640 w
(forced air cooling) [2]
640
(forced air cooling) 1250 w Pa 640 w